B5F-E2: Conversation with Orcus (オルクス) >
"Tremble in the face of death!" (お前も死を前に醜態をさらすがいい！) >
I'm not going to die here. (ここで死ぬことはない)/I'm not afraid to die. (死など恐れてはいない)/I'll live on as a ghost. (もし死しても霊は生きる)

Orcus, like in the previous battle with his other form, Horkos, summons a Katakirauwa with Grocery Run and then devours it with Binge Eating to recover half of the prey's HP. His attacks are physical-based, so use partners such as Doppelganger (ドッペルゲンガー) who can reflect physical attacks. Spam fire attack at Orcus to trigger Demon Co-Op. The Katakirauwa can still be charmed or muted to inflict it on Orcus when he devours it.

Reaper Orcus fusion is unlocked after the battle.

The route to the left

B5F-E4: Use Forma Search B to find the Sun Mirror (太陽鏡).

B5F-E5: Conversation with Mithras (ミスラ) >
"We should rule over humans!" (我らはニンゲンを従えるべき存在だ) >
Why can't we coexist? (なぜ共存できない)/That way is wrong. (それは邪な考えだ)/You may be right… (言う通りかもしれない)

First, get rid of the Pisacas with fire spells. Jack's Rain Strike inflicts random gun damage to the team. His Pure Blue recovers about 1000 HP and nulls all the debuffs, and Sunset Melody does physical damage and lowers the team's attack. Demons with reflect gun or physical mirror can come into good use. Also, Jack is susceptible to charm.

Asherah will use Asura Roga the first turn, defend to avoid the rage status ailment. Deploy members with fire resistance. Use ice-based attack to trigger Demon Co-Op. If Asherah uses Charge, defend the next turn to suppress the damage.

Lady Asherah fusion is unlocked after the battle.

Main mission #24 completed.

Pass through the hidden dimension through the control point, head to B7.

Mother Earth inflicts ice damage to the party and recovers the user's HP. Luster Candy gives the user buffs including Rakakaja, Sukukaja, and Tarukaja, have Dekaja handy to dispel the buffs. Sunset Melody inflicts damage to the whole party plus Tarunda, use Dekunda or Luster Candy/Tarukaja to counter.

Exploit its weakness against electric skills to trigger Demon Co-Op.

The boss may also use Diarahan if the team casts any physical or magical reflection (either by magic or item). It may also use Pure Blue (HP recovery + Dekunda) if any negative battle status is inflicted on it. A Futotama's Tables Turned ability can also work wonders, since it reverses the stat bonuses Luster Candy gives, making her receive more damage due to a huge deduction in Defense, the damage of Sunset Melody will also be greatly reduced.